CONTROLLED GROWTH OF MTT ZEOLITE BY MICROWAVE-ASSISTED HYDROTHERMAL SYNTHESIS

摘要

This invention relates a process for preparing MTT zeolites which process includes the preparation of a sol-gel from an aluminate solution, mixing a structure directing agent with the sol-gel to form a structure directing mixture, mixing a silica with the structure directing mixture to form a reaction mixture, heating the reaction mixture in a microwave reactor to form an initial zeolite, and removing the structure directing agent to form the MTT zeolite. The invention also relates to MTT zeolites produced by the process, including ZSM-23 zeolites, as well as zeolite membranes, coating and catalysts.

主权项

1. A process for preparing an MTT zeolite, the process comprising:
preparing a sol-gel by mixing a metal hydroxide with water, then mixing with an aluminum compound, to form an aluminate solution, to form the sol-gel; mixing a structure directing agent with the sol-gel, in a controlled manner over an addition time period, to form a structure directing mixture; mixing a silica with the structure directing mixture to form a reaction mixture; heating the reaction mixture in a microwave reactor at a crystallization temperature for a crystallization time period with stirring at a crystallization stirring speed, to form an initial zeolite; and removing the structure directing agent to form the MTT zeolite, wherein the crystallization time period ranges from 12 hours to 72 hours.